CN102364835A - Onsite horizontal-type stretching and compressing process of turbonator stator iron core - Google Patents
Onsite horizontal-type stretching and compressing process of turbonator stator iron core Download PDFInfo
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- CN102364835A CN102364835A CN201110183194XA CN201110183194A CN102364835A CN 102364835 A CN102364835 A CN 102364835A CN 201110183194X A CN201110183194X A CN 201110183194XA CN 201110183194 A CN201110183194 A CN 201110183194A CN 102364835 A CN102364835 A CN 102364835A
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- stator core
- pull bar
- vapour
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- stator
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Abstract
The invention relates to an onsite horizontal-type stretching and compressing process of a turbonator stator iron core. The process comprises the following steps of: carrying out horizontal compressing on the stator iron core by using 18 hydraulic stretchers; and finishing compressing of the iron core by using the hydraulic stretches through 18 pull rods and nuts, a stator iron core internal support, a steam end pressure tyre and an excitation end pressure tyre. In the invention, the advanced hydraulic stretchers are used, and the horizontal compressing to the iron core can be finished by the dedicated auxiliary tools, therefore the operability and the safety are greatly improved; and the process provided by the invention is an advanced and practical technological method.
Description
Technical field: the present invention relates to the on-the-spot horizontal drawing process of a kind of steamer generator stator core (1).
Technical background: some contingencies appear in steamer generator stator core (1) sometimes in running, can remove the part core stamping at the scene during the processing accident, and new stator core stamping sheet need compress after assembled.When steamer generator stator core (1) compresses, be in vertical condition in manufactory, compress with hydraulic press.Because on-the-spot stator is horizontal placement, change so compress arts demand.
Summary of the invention: the objective of the invention is to disclose a kind of safer, on-the-spot horizontal stretching of steamer generator stator core more easily and compress technology.
Technical scheme of the present invention is: the on-the-spot horizontal stretching of a kind of steamer generator stator core compresses technology:
One, the installation of hydraulic tensioning stator core instrument:
(A), stator core (1) is after closed assembly work is accomplished again; Product component all installs; Possess the condition of work of compressing, press the vapour ending tool tire (5) to hang in stator vapour end, press tire (5) temporary fixed instrument through the bottle gouard moved by hands (17) of jack (16), installation in advance with C type suspender (15);
(B), a stator core inner support (8) is put into stator core (1) in advance near the vapour end position; The effect of inner support is at vapour end pull bar (6) and encourages in end pull bar (10) installation process and play a supporting role, with timber wedge (7) stator core inner support (8) is fixed on stator core (1) centre;
(C), adorn 18 vapour end pull bars (6) to the stator thorax, pull bar passes stator core inner support (8), several last dresses under wherein; Vapour end pull bar (6) shifted to an earlier date coupling nut (9) before dress loads onto, and on screw thread, smears molybdenum disulphide grease, prevents coupling nut (9) and vapour end pull bar (6) owing to can't dismantle by the pulling force rear thread;
(D), another stator core inner support (8) is put into stator core (1) in advance near encouraging end position, with timber wedge (7) stator core inner support (8) is fixed in the middle of the stator core (1);
(E), adorn 18 and encourage end pull bar (10) to the stator thorax, pull bar passes stator core inner support (8), utilizes coupling nut (9) to hold pull bar (10) to connect with encouraging on vapour end pull bar (6);
(F), utilizing C type suspender (15) will encourage end presses tire (5) to hang in stator to encourage end; Utilize chain block (17) adjustment position; Bottom jack (16) supports; Have the operator to cooperate in stator core (1) thorax, encourage end pull bar (10) with 18 and from the hole of pressing tire (5) response, pass, the vapour end presses tire (5) outside also will have the operator to cooperate;
(G), dress vapour, encourage end nut (14), and on screw thread, smear molybdenum disulphide grease, prevent that nut and screw rod receive the pulling force rear thread to cause nut to dismantle.Owing to encouraging the end stretching, so will encourage the distolateral reach that suitable stretcher (11) is installed of reserving, stretcher (11) installation requirement screw thread exposed length is at 50～170mm;
Two, the installation of hydraulic elongator (11):
18 hydraulic elongators (11) must all be loaded onto, and guarantee that pulling force is uniformly distributed with;
Three, stretch:
Drawing process mesohigh oil pump (13) will rise to the rated pressure of stator core (1) gradually, tightening nuts (14) repeatedly in the process;
Want during tightening nuts (14) 180 degree symmetries to tighten in addition, make and press tire (5) stressed evenly;
Four, positioning bar nut screwing clamping:
At last, after pressure reaches requirement, screwed in place muscle nut (4);
Five, compress work and accomplish, remove all instruments.
Used advanced hydraulic elongator to accomplish stator compressing under the horizontal placement situation in power plant in the process of the present invention; And obtained through refining special aid; The operability and the fail safe of kit improve greatly; Be the power plant reduction of erection time, generating in advance provides sound assurance, is a kind of advanced practical process.
Description of drawings:
Fig. 1 stator core compression fit figure
Fig. 2 presses the tire instrument to hang in figure
Fig. 3 is for pressing the fixing figure of tire
Fig. 4 is for pressing the tire tool drawing
Fig. 5 is an inner support tool drawing unshakable in one's determination
Embodiment:
The on-the-spot horizontal stretching of steamer generator stator core as shown in Figure 1 compresses technology:
(A), stator core 1 is after closed assembly work is accomplished again; Product component is put into stator core 1 near the vapour end position with a stator core inner support 8 after all installing in advance; Effect is to play a supporting role with encouraging in end pull bar 10 installation processes at vapour end pull bar 6, with timber wedge 7 stator core inner support 8 is fixed on stator core 1 centre;
(B), adorn 18 vapour end pull bars 6, several last dresses under wherein; Vapour end pull bar 6 shifted to an earlier date coupling nut 9 before dress loads onto, and on screw thread, smears molybdenum disulphide grease, prevents that coupling nut 9 and vapour end pull bar 6 are owing to can't be dismantled by the pulling force rear thread;
(C), another stator core inner support 8 is put into stator core 1 in advance near encouraging end position, with timber wedge 7 stator core inner support 8 is fixed in the middle of the stator core 1;
(D), adorn 18 and encourage in end pull bar 10 to the stator thorax, pull bar passes stator core inner support 8, utilize coupling nut 9 with vapour end pull bar 6 with encourage end pull bar 10 and connect;
(E), utilizing C type suspender 15 will encourage end presses tire 5 to hang in stator to encourage end; Utilize chain block 17 adjustment positions, bottom jack 16 supports, and has the operator to cooperate in stator core 1 thorax; Encourage end pull bar 10 with 18 and from the hole of pressing tire 5 responses, pass, the vapour end presses tire 5 outsides also will have the operator to cooperate;
(F), dress vapour, encourage end nut 14, and on screw thread, smear molybdenum disulphide grease, prevent that nut and screw rod receive the pulling force rear thread to cause nut to dismantle.Owing to encouraging the end stretching, be fit to the reach that stretcher 11 is installed so will encourage distolateral reserving, stretcher 11 installation requirement screw thread exposed lengths are at 50～170mm; 18 hydraulic elongators 11 must all be loaded onto, and guarantee that pulling force is uniformly distributed with;
(G), drawing process mesohigh oil pump 13 will rise to the rated pressure of stator core 1 gradually, tightening nuts 14 repeatedly in the process; Want during tightening nuts 14 180 degree symmetries to tighten in addition, make and press tire 5 stressed evenly.
Can find out that like Fig. 2 pressure tire 5 hangs in the process, need will press tire 5 to utilize crane to hang as in the support with C type lifting device 15.
As Fig. 3 can find out press tire 5 to hang in support after, hold on top through two chain blocks 17 and to press tire 5, bottom to utilize jack 16 to support, prevent to press tire 5 to drop.
Like Fig. 4, be the sketch map of pressing tire 5,18 middle holes are used for wearing pull bar.
Like Fig. 5, be the sketch map of inner support instrument, the instrument cylindrical is slightly littler than internal diameter unshakable in one's determination, and 18 holes are to wear pull bar usefulness, and middle endoporus is that operating personnel pass through for ease.
Claims (1)
1. the on-the-spot horizontal stretching of steamer generator stator core compresses technology, it is characterized in that:
One, the installation of hydraulic tensioning stator core instrument:
(A), stator core (1) is after closed assembly work is accomplished again; Product component all installs; Possess the condition of work of compressing, press the vapour ending tool tire (5) to hang in stator vapour end, press tire (5) temporary fixed instrument through the bottle gouard moved by hands (17) of jack (16), installation in advance with C type suspender (15);
(B), a stator core inner support (8) is put into stator core (1) in advance near the vapour end position; At vapour end pull bar (6) with encourage in end pull bar (10) installation process and play a supporting role, stator core inner support (8) is fixed on stator core (1) centre with timber wedge (7);
(C), adorn 18 vapour end pull bars (6) to the stator thorax, pull bar passes stator core inner support (8), several last dresses under wherein; Vapour end pull bar (6) shifted to an earlier date coupling nut (9) before dress loads onto, and on screw thread, smears molybdenum disulphide grease, prevents coupling nut (9) and vapour end pull bar (6) owing to can't dismantle by the pulling force rear thread;
(D), another stator core inner support (8) is put into stator core (1) in advance near encouraging end position, with timber wedge (7) stator core inner support (8) is fixed in the middle of the stator core (1);
(E), adorn 18 and encourage end pull bar (10) to the stator thorax, pull bar passes stator core inner support (8), utilizes coupling nut (9) to hold pull bar (10) to connect with encouraging on vapour end pull bar (6);
(F), utilizing C type suspender (15) will encourage end presses tire (5) to hang in stator to encourage end; Utilize chain block (17) adjustment position; Bottom jack (16) supports; Have the operator to cooperate in stator core (1) thorax, encourage end pull bar (10) with 18 and from the hole of pressing tire (5) response, pass, the vapour end presses tire (5) outside also will have the operator to cooperate;
(G), dress vapour, encourage end nut (14), and on screw thread, smear molybdenum disulphide grease, prevent nut.Owing to encouraging the end stretching, so will encourage the distolateral reach that suitable stretcher (11) is installed of reserving, stretcher (11) installation requirement screw thread exposed length is at 50～170mm;
Two, the installation of hydraulic elongator (11):
18 hydraulic elongators (11) must all be loaded onto, and guarantee that pulling force is uniformly distributed with;
Three, stretch:
Drawing process mesohigh oil pump (13) will rise to the rated pressure of stator core (1) gradually, tightening nuts (14) repeatedly in the process;
Want during tightening nuts (14) 180 degree symmetries to tighten in addition, make and press tire (5) stressed evenly;
Four, positioning bar nut screwing clamping:
At last, after pressure reaches requirement, screwed in place muscle nut (4);
Five, compress work and accomplish, remove all instruments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110183194XA CN102364835A (en) | 2011-07-01 | 2011-07-01 | Onsite horizontal-type stretching and compressing process of turbonator stator iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110183194XA CN102364835A (en) | 2011-07-01 | 2011-07-01 | Onsite horizontal-type stretching and compressing process of turbonator stator iron core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102364835A true CN102364835A (en) | 2012-02-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110183194XA Pending CN102364835A (en) | 2011-07-01 | 2011-07-01 | Onsite horizontal-type stretching and compressing process of turbonator stator iron core |
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| CN (1) | CN102364835A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347272A (en) * | 2018-11-07 | 2019-02-15 | 哈尔滨电机厂有限责任公司 | A kind of process of hydraulic power installation stator of steam turbine generator slot wedge |
| CN113364226A (en) * | 2021-07-22 | 2021-09-07 | 哈尔滨电机厂有限责任公司 | Horizontal type stacking positioning and compressing process method for main stator iron core |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3916233A (en) * | 1971-11-18 | 1975-10-28 | Licentia Gmbh | Electrical machine |
| US4894573A (en) * | 1987-12-11 | 1990-01-16 | Northern Engineering Industries Plc | Rotary electrical machines |
| CN101953055A (en) * | 2008-02-07 | 2011-01-19 | 西门子能源公司 | Use key bar extension horizontal group dress stator core |
-
2011
- 2011-07-01 CN CN201110183194XA patent/CN102364835A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3916233A (en) * | 1971-11-18 | 1975-10-28 | Licentia Gmbh | Electrical machine |
| US4894573A (en) * | 1987-12-11 | 1990-01-16 | Northern Engineering Industries Plc | Rotary electrical machines |
| CN101953055A (en) * | 2008-02-07 | 2011-01-19 | 西门子能源公司 | Use key bar extension horizontal group dress stator core |
Non-Patent Citations (3)
| Title |
|---|
| 于德志: "用于大型汽轮发电机定子铁芯装拆的组合式600吨油压机", 《大电机技术》 * |
| 曲建国等: "定子铁心压紧系统比较", 《东北电力技术》 * |
| 邢文杰等: "液压拉伸器在汽轮发电机定子铁心装压中的应用", 《大电机技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347272A (en) * | 2018-11-07 | 2019-02-15 | 哈尔滨电机厂有限责任公司 | A kind of process of hydraulic power installation stator of steam turbine generator slot wedge |
| CN113364226A (en) * | 2021-07-22 | 2021-09-07 | 哈尔滨电机厂有限责任公司 | Horizontal type stacking positioning and compressing process method for main stator iron core |
| CN113364226B (en) * | 2021-07-22 | 2022-09-02 | 哈尔滨电机厂有限责任公司 | Horizontal type stacking positioning and compressing process method for main stator iron core |
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Application publication date: 20120229 |